Finding the Fourth Proportional to 30,621.59, 42,254.53 and 17,194.31

Step by Step Solution

1. Step 1: Write the proportion equation
   30,621.59 : 42,254.53 = 17,194.31 : x
2. Step 2: Convert to fraction form
   30,621.59/42,254.53 = 17,194.31/x
3. Step 3: Cross multiply
   30,621.59x = 42,254.53 × 17,194.31
4. Step 4: Simplify right side
   30,621.59x = 726,537,487.72
5. Step 5: Solve for x
   x = 726,537,487.72/30,621.59
6. Step 6: Final answer
   x = 23,726.31